Commit e8200baa authored May 07, 2015 by Chris Metcalf

tile: fix "odd fault" warning for stack backtraces



We were setting ex1 in new kernel threads to KERNEL_PL.
But since we just do a simple context-switch, not an iret,
any value set here is ignored anyway, and its presence causes
stack backtraces to end with a warning about an "odd fault".

Signed-off-by: Chris Metcalf <cmetcalf@ezchip.com>

parent 9a5d2cbe

arch/tile/kernel/process.c

+0 −1

Original line number	Diff line number	Diff line
		@@ -133,7 +133,6 @@ int copy_thread(unsigned long clone_flags, unsigned long sp,
		(CALLEE_SAVED_REGS_COUNT - 2) * sizeof(unsigned long));
		callee_regs[0] = sp; /* r30 = function */
		callee_regs[1] = arg; /* r31 = arg */
		childregs->ex1 = PL_ICS_EX1(KERNEL_PL, 0);
		p->thread.pc = (unsigned long) ret_from_kernel_thread;
		return 0;
		}